Incubator or brooder tank.



UNITED STATES PATENT OFFICE.

MANANDER MOTT JOHNSON, OF CLAY CENTRE, NEBRASKA.

lNCUBATOR OR BROODER TANK.

SPECIFICATION forming part-of Letters Patent No. 630,355, `dated August 8, 1899.

Application iled April 19, 1899. Serial No. 713,575. (No model.)

To all wtom/ t may concern:

Beit known that I, MANANDER Morr JOHN- SON, a citizen of the United States, residing at Clay Centre, in the county of Clay and State of Nebraska, have invented certain new and useful Improvements in Incubator or Brooder Tanks; and I do declare the following to be a full, clear, and eXact description'of the invention, such as will enable others skilled in the art to which it appertains to Inake and use the same.

The invention relates to heat-circulating tanks for incubators and broeders.

The object is to simplify and improve the construction, reduce the cost of manufacture, and increase the effectiveness of the device.

To this end the invention consists in the construction, combination, and arrangement of the device, as will be hereinafter more fully described, and particularly pointed out in the appended claims.

In the drawings, Figure l is a perspective View of my improved incubator and broeder tank, with a portion of one corner broken away to show the partition. Fig. 2 is a 1ongitudinal section through the tank. Fig. 3 is a modified form. Fig. 4 is a plan view of the sheet-metal blank from which the tank is formed.

The tank proper consists of a sheet-Inetal plate l, cut into the form shown in Fig. 4, with the lateral iianges'2 2 2 2, which are turned over and inwardly to the center of the plate to form the chambers 3 3 3 3. The free edges of the iianges are soldered to the body of the plate, and the contiguous diagonal edges of the iianges are soldered together to form a practically continuous chamber extending entirely around the body portion of the plate.

4 denotes a partition formed in one corner of the tank, and 5 an inlet-pipe from the boiler. 6 denotes the return-pipe, located on the opposite side of the partition, for the return of the water to the boiler. It will thus be seen that the hot water from the boiler enters on one side of the partition and after circulating through the chambers escapes back to the boiler through the return-pipe G. The space in the center of the tank between the four chambers is preferably packed with mineral wool, asbestos, or other similar material to absorband dissipate the heat from the center of the tank to attain the best results.

As above shown, the tank is adapted for vuse with a hot-water incubator or broeder;

but by simply changing the outlet-pipe G from the bottom to the top of the chamber, as shown in Fig. 3, the device forms a perfect hot-air tank for incubators and broeders.

It will of course be understood that various changes in the form, proportion, and the Ininor details of construction may be resorted to without departing from the principle or sacrificing any of the advantages of this invention.

Having thus described the invention, what is claimed, anddesired to be secured by Letters Patent, is

l. A tank of the class described, comprising the sheet-metal plate, the non-conducting iilling and the encompassing chambers having the outer edges of said plate extending upwardly and diagonally inward and down.- ward to join the meeting face of said plate, substantially as and for the purpose set forth.

2. Atank of the class described comprising a rectangular chamber having a depressed center formed with a horizontal bottom, a vertical outer wall and a continuous inwardly inclined top, the inner edge of which forms a Vjoint with said horizontal bottom, substantially as and for the purpose set forth.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

MANANDER MOTT JOHNSON. 

